POSTIN

/bin/sh

update-alternatives --install \
    /usr/bin/yad yad-bin \
    /usr/bin/yad-gtk3 \
    9 \
    --slave \
    /usr/bin/yad-icon-browser yad-icon-browser-bin \
    /usr/bin/yad-icon-browser-gtk3 \
    --slave \
    /usr/bin/pfd pfd-bin \
    /usr/bin/pfd-gtk3

POSTUN

/bin/sh

if [ "$1" -eq 0 ]; then
    update-alternatives --remove yad-bin /usr/bin/yad-gtk3
fi